Sorry, I was really looking forward to this being awesome for my cat. I only received one of six packs, and it only sprouted 2 pieces of grass, and the dirt got moldy. I did get a refund, but I was bummed it didn't work~

Like another reviewer below, I also bought this six pack and when it arrived, there was only ONE in the box. Groupon was kind enough to refund the unused portion as credit to my account. However it is not worth the time and hassle.